10.5061/DRYAD.78CC8
Van Petegem, Katrien H. P.
Ghent University
Renault, David
Ghent University
Stoks, Robby
KU Leuven
Bonte, Dries
Ghent University
Data from: Metabolic adaptations in a range-expanding arthropod
Dryad
dataset
2017
GC-MS metabolomics
holoceen
essential amino acids
Tetranychus urticae
Holocene
2017-07-08T00:00:00Z
2017-07-08T00:00:00Z
en
https://doi.org/10.1002/ece3.2350
43703 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Despite an increasing number of studies documenting life-history evolution
during range expansions or shifts, we lack a mechanistic understanding of
the underlying physiological processes. In this explorative study, we used
a metabolomics approach to study physiological changes associated with the
recent range expansion of the two-spotted spider mite (Tetranychus
urticae). Mite populations were sampled along a latitudinal gradient from
range core to edge and reared under benign common garden conditions for
two generations. Using gas chromatography–mass spectrometry, we obtained
metabolic population profiles, which showed a gradual differentiation
along the latitudinal gradient, indicating (epi)genetic changes in the
metabolome in association with range expansion. These changes seemed not
related with shifts in the mites’ energetic metabolism, but rather with
differential use of amino acids. Particularly, more dispersive northern
populations showed lowered concentrations of several essential and
nonessential amino acids, suggesting a potential downregulation of
metabolic pathways associated with protein synthesis.
metabolomics of a range expanding arthropod_results of GC-MS analysisThis
file contains the outcomes of the GC-MS analysis described in Van Petegem
et al. 2016_Metabolomics of a range expanding arthropod. The analysis was
performed for two-spotted spider mites collected in nine localities along
this species' latitudinal expansion gradient. For each of the 43
metabolites that were detected in the mite samples (5 samples per
locality), nmol/sample is given.
Belgium
Denmark
Germany
the Netherlands